Pressure swing adsorption oxygen generator

Abstract

The utility model discloses a pressure swing adsorption oxygen generator relates to the field of oxygen generator, the utility model discloses a mobile mechanism, oxygen generator, the oxygen generator includes first equalizing tank, second equalizing tank, main adsorption tank and drying tank, the outside of first equalizing tank, second equalizing tank, main adsorption tank and drying tank all is provided with maintenance mechanism, the utility model discloses through setting maintenance mechanism, screw rod motor, screw rod seat, installation ring, fixed groove, piezoelectric ceramic sheet, sweep piece, wherein piezoelectric ceramic sheet can produce high frequency vibration and drive sweep piece to carry out automatic cleaning to the jar body surface, and simultaneously, screw rod motor drives installation ring to move along the jar body axial movement and realizes overall coverage, solves the technical problem of low artificial cleaning efficiency, the existence health dead angle leads to the bacteria breeding influence oxygen production quality and the increase medical staff work burden in prior art.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generators, specifically a pressure swing adsorption oxygen generator. Background Technology

[0002] Pressure swing adsorption (PSA) oxygen generators typically consist of a large main adsorption tower, two relatively small equalization tanks, and a slender drying tank as their core components. The main adsorption tower is the key component of the oxygen production process. It is filled with highly efficient molecular sieve materials that have different adsorption selectivity for nitrogen and oxygen. Under pressure changes, it can accurately and efficiently separate oxygen and nitrogen in the air and is the main component for producing high-purity oxygen.

[0003] However, when current pressure swing adsorption (PSA) oxygen generators are used in environments with strict hygiene requirements, such as hospitals, medical staff need to regularly wipe the tank surface and pipeline interfaces with disinfectant, such as daily or weekly, to prevent bacterial growth, which increases their workload. If the complex structures such as tank welds and flange connections are not cleaned, dust and microorganisms can easily accumulate, which may affect the quality of oxygen production. Summary of the Invention

[0004] Based on this, the purpose of this utility model is to provide a pressure swing adsorption oxygen generator to solve the technical problems in the prior art, such as low efficiency of manual cleaning, existence of sanitary dead corners leading to bacterial growth on the equipment surface, affecting oxygen production quality, and increasing the workload of medical staff.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pressure swing adsorption oxygen generator, comprising a moving mechanism and an oxygen generator, wherein the oxygen generator comprises a first equalization tank, a second equalization tank, a main adsorption tank and a drying tank, and a maintenance mechanism is provided on the outside of the first equalization tank, the second equalization tank, the main adsorption tank and the drying tank. The maintenance mechanism includes multiple sets of lead screw motors, each with a lead screw seat mounted on its lead screw. Multiple mounting rings are mounted on one side of the lead screw seat, and these mounting rings are respectively adapted to the first equalization tank, the second equalization tank, the main adsorption tank, and the drying tank. Multiple mounting rings are arranged in a ring array with multiple fixing slots at equal intervals on their inner sides, and piezoelectric ceramic sheets are arranged in the multiple fixing slots, with scanning plates arranged on the piezoelectric ceramic sheets.

[0006] By adopting the above technical solution, the maintenance mechanism drives the mounting ring to move along the tank body through a screw motor, and the piezoelectric ceramic plate drives the sweeping plate to achieve automatic cleaning. The structure is compact and easy to maintain.

[0007] Furthermore, the lead screw motor, lead screw seat, and mounting ring are made of aluminum alloy, and the maintenance mechanism is used to maintain the hygiene of the oxygen generator surface.

[0008] By adopting the above technical solutions, the aluminum alloy lead screw motor, lead screw seat, and mounting ring are lightweight and high-strength, ensuring the long-term stable operation of the maintenance mechanism.

[0009] Furthermore, the oxygen generator is provided with a moving mechanism at the bottom, the moving mechanism including a base, the bottom of the base being provided with multiple tires, and a tow hook groove being provided on one side of the base.

[0010] By adopting the above technical solution, the mobile mechanism enables convenient movement of the equipment through tires, and the hook groove facilitates fixing and traction, thereby improving the mobility of the equipment.

[0011] Furthermore, the first equalization tank, the second equalization tank, the main adsorption tank, and the drying tank are connected by connecting pipelines.

[0012] By adopting the above technical solution, the connecting pipelines connect the various functional tanks into a system, ensuring smooth gas flow and a reasonable structural layout.

[0013] Furthermore, the sweeping blade inside the mounting ring is made of flexible silicone material, and its outer edge maintains a gap of 1-3mm with the surface of the tank. When the piezoelectric ceramic plate vibrates at high frequency, it generates radial oscillation, thereby achieving non-contact dust removal.

[0014] By adopting the above technical solution, the flexible silicone brush pad achieves contactless dust removal driven by a piezoelectric ceramic plate, avoiding damage to the tank surface.

[0015] Furthermore, the tires at the bottom of the base are a combination of omnidirectional and directional wheels, with the front wheels being omnidirectional wheels with brakes and the rear wheels being directional wheels, and a rubber buffer layer provided on the inner wall of the tow hook groove.

[0016] By adopting the above technical solutions, the tires use a combination of omnidirectional and directional wheels, with a brake design to ensure safe movement, and a rubber buffer layer in the tow hook groove to reduce vibration.

[0017] Furthermore, the connecting pipeline is made of corrugated stainless steel pipe, with electric heating tape wrapped around its outer surface, and connected to the flanges of each tank by clamps to form a vibration-resistant flexible pipeline system.

[0018] By adopting the above technical solutions, the corrugated stainless steel pipe connection pipeline, together with the electric heating tape, ensures the flexibility and temperature stability of the pipeline system, and the clamp flange connection is firm and reliable.

[0019] Furthermore, the lead screw seat and the mounting ring are connected by a quick-release interface, and the inner diameter of the mounting ring is equipped with a replaceable nylon bushing to adapt to the maintenance needs of tanks with different diameters.

[0020] By adopting the above technical solutions, the quick-release interface and replaceable nylon bushing design enable the mounting ring to adapt to tanks of different diameters, improving the versatility of the maintenance mechanism.

[0021] In summary, the present invention has the following main advantages: 1. This utility model solves the technical problems of low efficiency of manual cleaning, bacterial growth due to the existence of sanitary dead corners affecting oxygen production quality, and increased workload of medical staff by setting up a maintenance mechanism, a lead screw motor, a lead screw seat, an mounting ring, a fixing groove, a piezoelectric ceramic plate, and a sweeping plate. The piezoelectric ceramic plate can generate high-frequency vibration to drive the sweeping plate to automatically clean the surface of the tank. At the same time, the lead screw motor drives the mounting ring to move along the axial direction of the tank to achieve full coverage. 2. This utility model features a mobile mechanism with a combination of omnidirectional and directional wheels at the base. The front wheels are omnidirectional wheels with brakes, while the rear wheels are directional wheels. This allows the equipment to flexibly turn and move in narrow spaces such as hospital corridors. The inner wall of the tow hook groove is equipped with a rubber buffer layer for easy docking with a transport vehicle, enabling rapid transfer of the equipment. This mobile mechanism design ensures that the equipment can be easily moved when needed and can be stably fixed during use through the braking device. It is particularly suitable for use in places such as hospitals where the position of the equipment needs to be frequently adjusted. At the same time, the mobile mechanism is made of medical-grade materials, which will not damage the ground or generate noise, fully meeting the requirements for use in medical environments. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a rear-view three-dimensional structural diagram of the present invention; Figure 3 This is a partial three-dimensional structural diagram of the mounting ring of this utility model; Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0023] In the diagram: 1. Moving mechanism; 101. Base; 102. Tire; 103. Hook groove; 2. Oxygen generator; 201. First equalization tank; 202. Second equalization tank; 203. Main adsorption tank; 204. Drying tank; 205. Connecting pipeline; 3. Maintenance mechanism; 301. Screw motor; 302. Screw seat; 303. Mounting ring; 304. Fixing groove; 305. Piezoelectric ceramic plate; 306. Sweeping plate. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Example 1:

[0025] A pressure swing adsorption oxygen generator, such as Figure 1-4 As shown, it includes a moving mechanism 1 and an oxygen generator 2. The oxygen generator 2 includes a first equalization tank 201, a second equalization tank 202, a main adsorption tank 203 and a drying tank 204. Maintenance mechanisms 3 are provided on the outside of the first equalization tank 201, the second equalization tank 202, the main adsorption tank 203 and the drying tank 204. The maintenance mechanism 3 includes multiple sets of lead screw motors 301. A lead screw seat 302 is installed on the lead screw of the lead screw motor 301. Multiple mounting rings 303 are installed on one side of the lead screw seat 302, and the multiple mounting rings 303 are respectively adapted to the first equalization tank 201, the second equalization tank 202, the main adsorption tank 203 and the drying tank 204. Multiple mounting rings 303 have multiple fixing grooves 304 evenly spaced in a ring array along their inner sides. Piezoelectric ceramic plates 305 are installed in the fixing grooves 304, and sweeping plates 306 are installed on the piezoelectric ceramic plates 305. The maintenance mechanism 3 includes multiple sets of lead screw motors 301, which drive the mounting rings 303 to move along the surfaces of the first equalization tank 201, the second equalization tank 202, the main adsorption tank 203, and the drying tank 204 through the lead screw seat 302. The piezoelectric ceramic plates 305 installed on the inner side of the mounting rings 303 drive the sweeping plates 306 to work, realizing the automatic cleaning function of the tank surface. This structure is reasonably designed, easy to maintain and operate, and can effectively maintain the hygiene of the oxygen generator 2.

[0026] See Figure 1 , Figure 3 , Figure 4 The lead screw motor 301, lead screw seat 302, and mounting ring 303 are made of aluminum alloy. The maintenance mechanism 3 is used to maintain the surface hygiene of the oxygen generator 2. The lead screw motor 301, lead screw seat 302, and mounting ring 303 are made of aluminum alloy, which has the characteristics of light weight, high strength, and corrosion resistance. This material can ensure the structural stability and operational reliability of the maintenance mechanism 3 during long-term use, while reducing the overall weight of the equipment and facilitating maintenance operations. Example 2:

[0027] See Figure 1 , Figure 2 The oxygen concentrator 2 has a moving mechanism 1 at its bottom. The moving mechanism 1 includes a base 101, and multiple tires 102 are provided at the bottom of the base 101. A tow hook groove 103 is provided on one side of the base 101. The moving mechanism 1 includes the base 101 and the tires 102, which enables the oxygen concentrator 2 to move. The tow hook groove 103 provided on one side of the base 101 facilitates the fixing and towing of the equipment. This design improves the mobility and ease of use of the equipment and meets the needs of different places.

[0028] See Figure 1The first equalization tank 201, the second equalization tank 202, the main adsorption tank 203, and the drying tank 204 are connected by a connecting pipe 205. The connecting pipe 205 connects the first equalization tank 201, the second equalization tank 202, the main adsorption tank 203, and the drying tank 204 into a complete gas treatment system. This design ensures smooth connection of each link in the oxygen production process, reasonable gas flow path, and guarantees oxygen production efficiency and quality.

[0029] See Figure 1 , Figure 4 The brush 306 inside the mounting ring 303 is made of flexible silicone material. Its outer edge maintains a gap of 1-3mm with the surface of the tank. When the piezoelectric ceramic plate 305 vibrates at high frequency, it generates radial oscillation, realizing non-contact dust removal. The brush 306 inside the mounting ring 303 generates radial oscillation under the action of high frequency vibration of the piezoelectric ceramic plate 305, and maintains an appropriate gap with the surface of the tank to achieve non-contact dust removal. This design can effectively remove surface dust and avoid wear and damage to the surface of the tank.

[0030] See Figure 1 , Figure 2 The tires 102 at the bottom of the base 101 are a combination of omnidirectional and directional wheels, with the front wheels being omnidirectional wheels with brakes and the rear wheels being directional wheels. The inner wall of the hook groove 103 is provided with a rubber buffer layer. The moving mechanism 1 adopts a tire 102 layout design with omnidirectional wheels with brakes at the front and directional wheels at the rear to ensure that the equipment moves flexibly and stably. The rubber buffer layer provided on the inner wall of the hook groove 103 effectively reduces vibration and noise during traction, improving the safety and comfort of equipment movement.

[0031] See Figure 1 , Figure 2 The connecting pipe 205 is made of corrugated stainless steel pipe, with electric heating tape wrapped around its outer surface. It is connected to the flanges of each tank through clamps to form a vibration-resistant flexible pipeline system. The connecting pipe 205 is made of corrugated stainless steel pipe, with electric heating tape wrapped around its outer surface to maintain stable pipeline temperature. It is connected to the flanges of each tank through clamps. This design forms a flexible pipeline system with vibration resistance, ensuring a firm and reliable connection and precise temperature control during gas transportation.

[0032] See Figure 1 , Figure 4The lead screw seat 302 and the mounting ring 303 are connected by a quick-release interface. The inner diameter of the mounting ring 303 is equipped with a replaceable nylon bushing to adapt to the maintenance needs of tanks with different diameters. This design allows the maintenance mechanism 3 to quickly adapt to tanks with different diameters, such as the first equalization tank 201, the second equalization tank 202, the main adsorption tank 203, and the drying tank 204, thereby improving the equipment's versatility and maintenance convenience.

[0033] The implementation principle of this embodiment is as follows: First, the oxygen generator 2 is moved to the working position by the tires 102 of the moving mechanism 1, and the tow hook groove 103 facilitates the equipment to be pulled and fixed; after the oxygen generator 2 is started, the first equalization tank 201 and the second equalization tank 202 form a circulation system with the main adsorption tank 203 and the drying tank 204 through the connecting pipe 205. When cleaning and maintenance are required, the screw motor 301 of the maintenance mechanism 3 is started, driving the screw seat 302 to move along the tank axial direction, which drives the mounting ring 303 and the piezoelectric ceramic plate 305 inside to work. The high-frequency vibration of the piezoelectric ceramic plate 305 causes the flexible silicone brush plate 306 to oscillate radially, performing non-contact cleaning of the tank surface. The quick-release interface design of the lead screw seat 302 and the mounting ring 303 facilitates the replacement of nylon bushings of different sizes to meet the different diameter maintenance needs of the first equalization tank 201, the second equalization tank 202, the main adsorption tank 203 and the drying tank 204. The corrugated stainless steel pipe structure and electric heating tape of connecting pipe 205 ensure that the piping system maintains stable operation in a vibration environment.

[0034] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A pressure swing adsorption (PSA) oxygen generator, characterized in that: The device includes a moving mechanism (1) and an oxygen generator (2). The oxygen generator (2) includes a first equalization tank (201), a second equalization tank (202), a main adsorption tank (203), and a drying tank (204). Maintenance mechanisms (3) are provided on the outside of the first equalization tank (201), the second equalization tank (202), the main adsorption tank (203), and the drying tank (204). The maintenance mechanism (3) includes multiple sets of lead screw motors (301), and a lead screw seat (302) is installed on the lead screw of the lead screw motor (301). Multiple mounting rings (303) are installed on one side of the lead screw seat (302), and the multiple mounting rings (303) are respectively adapted to the first equalization tank (201), the second equalization tank (202), the main adsorption tank (203) and the drying tank (204); Multiple mounting rings (303) are provided with multiple fixing grooves (304) at equal intervals in a ring array along the inner side of the mounting rings (303), and piezoelectric ceramic sheets (305) are provided in the multiple fixing grooves (304), and scanning plates (306) are provided on the piezoelectric ceramic sheets (305).

2. The pressure swing adsorption oxygen generator according to claim 1, characterized in that: The lead screw motor (301), lead screw seat (302) and mounting ring (303) are made of aluminum alloy, and the maintenance mechanism (3) is used to maintain the surface hygiene of the oxygen generator (2).

3. The pressure swing adsorption oxygen generator according to claim 1, characterized in that: The oxygen generator (2) is provided with a moving mechanism (1) at the bottom. The moving mechanism (1) includes a base (101). The bottom of the base (101) is provided with multiple tires (102). A tow hook groove (103) is provided on one side of the base (101).

4. The pressure swing adsorption oxygen generator according to claim 1, characterized in that: The first equalization tank (201), the second equalization tank (202), the main adsorption tank (203) and the drying tank (204) are connected by connecting pipes (205).

5. The pressure swing adsorption oxygen generator according to claim 1, characterized in that: The sweeping blade (306) inside the mounting ring (303) is made of flexible silicone material. Its outer edge maintains a gap of 1-3mm with the surface of the tank. When the piezoelectric ceramic plate (305) vibrates at high frequency, it generates radial oscillation to achieve non-contact dust removal.

6. The pressure swing adsorption oxygen generator according to claim 3, characterized in that: The tire (102) at the bottom of the base (101) is a combination of omnidirectional and directional wheels, wherein the front wheel is an omnidirectional wheel with brakes and the rear wheel is a directional wheel, and the inner wall of the tow hook groove (103) is provided with a rubber buffer layer.

7. The pressure swing adsorption oxygen generator according to claim 4, characterized in that: The connecting pipeline (205) is made of corrugated stainless steel pipe, with electric heating tape wrapped around its outer surface, and connected to the flanges of each tank by clamps to form a vibration-resistant flexible pipeline system.

8. The pressure swing adsorption oxygen generator according to claim 1, characterized in that: The lead screw seat (302) and the mounting ring (303) are connected by a quick-release interface. The inner diameter of the mounting ring (303) is provided with a replaceable nylon bushing to adapt to the maintenance needs of tanks with different diameters.

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